def get_file_contents(fname):
with open(fname, 'r') as f:
content = f.read()
try:
return json.loads(content)
except ValueError:
msg = _("Error occured while trying to translate JSON")
raise exceptions.MagnetoDBClientException(message=msg)
def retry_request(self, method, action, body=None,
headers=None, params=None):
"""Call do_request with the default retry configuration.
Only idempotent requests should retry failed connection attempts.
:raises: ConnectionFailed if the maximum # of retries is exceeded
"""
max_attempts = self.retries + 1
for i in range(max_attempts):
try:
return self.do_request(method, action, body=body,
headers=headers, params=params)
except exceptions.ConnectionFailed:
# Exception has already been logged by do_request()
if i < self.retries:
_logger.debug(_('Retrying connection '
'to MagnetoDB service'))
time.sleep(self.retry_interval)
raise exceptions.ConnectionFailed(reason=_("Maximum attempts reached"))
def _handle_fault_response(self, status_code, response_body):
# Create exception with HTTP status code and message
_logger.debug(_("Error message: %s"), response_body)
# Add deserialized error message to exception arguments
try:
des_error_body = self.deserialize(response_body, status_code)
except Exception:
# If unable to deserialized body it is probably not a
# MagnetoDB error
des_error_body = {'message': response_body}
# Raise the appropriate exception
exception_handler_v1(status_code, des_error_body)
def serialize(self, data):
"""Serializes a dictionary into either xml or json.
A dictionary with a single key can be passed and
it can contain any structure.
"""
if data is None:
return None
elif type(data) is dict:
return serializer.Serializer().serialize(data, self.content_type)
else:
raise Exception(_("Unable to serialize object of type = '%s'") %
type(data))
def get_client_class(api_name, version, version_map):
"""Returns the client class for the requested API version
:param api_name: the name of the API, e.g. 'compute', 'image', etc
:param version: the requested API version
:param version_map: a dict of client classes keyed by version
:rtype: a client class for the requested API version
"""
try:
client_path = version_map[api_name][str(version)]
except (KeyError, ValueError):
msg = _("Invalid %(api_name)s client version '%(version)s'. must be "
"one of: %(map_keys)s")
msg = msg % {'api_name': api_name, 'version': version,
'map_keys': ', '.join(version_map.keys())}
raise exceptions.UnsupportedVersion(msg)
return import_class(client_path)
def http_log_req(_logger, args, kwargs):
if not _logger.isEnabledFor(logging.DEBUG):
return
string_parts = ['curl -i']
for element in args:
if element in ('GET', 'POST', 'DELETE', 'PUT'):
string_parts.append(' -X %s' % element)
else:
string_parts.append(' %s' % element)
for element in kwargs['headers']:
header = ' -H "%s: %s"' % (element, kwargs['headers'][element])
string_parts.append(header)
if 'body' in kwargs and kwargs['body']:
string_parts.append(" -d '%s'" % (kwargs['body']))
string_parts = safe_encode_list(string_parts)
_logger.debug(_("\nREQ: %s\n"), "".join(string_parts))
def http_log_resp(_logger, resp, body):
if not _logger.isEnabledFor(logging.DEBUG):
return
_logger.debug(_("RESP:%(resp)s %(body)s\n"), {'resp': resp, 'body': body})
def _handle_fault_response(self, status_code, response_body):
# Create exception with HTTP status code and message
_logger.debug(_("Error message: %s"), response_body)
exception_handler_v1(status_code, response_body)